Opening a Drawer in a New Window (Paned Style)

  If you are using a Paned style main window, choose Open
  Drawer In New Window from the main window's File menu
  to open the selected drawer in a new main window.  The
  folders in the open drawer are listed in the Drawer/Folder
  index pane of the new main window.

  Opening a new main window lets you have different drawers
  and folders open at the same time.  You can perform all Mail
  tasks on the drawers, folders, and messages displayed in the
  new window.

  For information about the different main window styles,
  double click on the additional topic below.

  Additional topics:

  *   Options Menu